21053410513001 has 8 divisors (see below), whose sum is σ = 21105213683400. Its totient is φ = 21001615850880.

The previous prime is 21053410512929. The next prime is 21053410513073. The reversal of 21053410513001 is 10031501435012.

It is an interprime number because it is at equal distance from previous prime (21053410512929) and next prime (21053410513073).

It can be written as a sum of positive squares in 4 ways, for example, as 837775920601 + 20215634592400 = 915301^2 + 4496180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-21053410513001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21053410513301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842205 + ... + 7084133.

It is an arithmetic number, because the mean of its divisors is an integer number (2638151710425).

Almost surely, 2^{21053410513001} is an apocalyptic number.

It is an amenable number.

21053410513001 is a deficient number, since it is larger than the sum of its proper divisors (51803170399).

21053410513001 is a wasteful number, since it uses less digits than its factorization.

21053410513001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254139.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 21053410513001 its reverse (10031501435012), we get a palindrome (31084911948013).

The spelling of 21053410513001 in words is "twenty-one trillion, fifty-three billion, four hundred ten million, five hundred thirteen thousand, one".